Thule 9031 Vertex Swing Away 4 Bike Hitch Rack Hitch carrier for transporting up to four bikes - compatible with 2" hitch receivers Swing-away design allows a fully loaded hitch rack to swing away from the vehicle for rear of vehicle access Improved hitch switch folds arms down when not in use, and tilts an unloaded carrier away from hatchbacks Arched mast and bike arm design for easier bike loading and carrying performance and increased mast height for improved ground clearance Thule Hold Fast cradles cushion bike and provide maximum bike security and anti-sway cages prevent bike-to-bike and bike-to-vehicle contact DO NOT install on a trailer or other towed vehicle